@idefix37 Do you mean, for each hour, when an observation was made, they put the most actual forecast for that hour from the whether models?
To me it would make more sense when they take the forecast i. e. 24h before observation. Otherwise the quality of prediction can't be weighed very good, because only a few hours before observation, they all merge very close to the actual whether conditions. 1 or 2 days before, the models often have quite big differences.
